<?php
/**
 * crcl/base
 *
 * Copyright 2013 CRCL - André Sabosch - info@crcl.de
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace crcl\base\template\instructions;

interface IForeach
{
}

class ContainerForeach extends Base implements IForeach, IConcrete
{
  public function execute()
  {
    $var = $this->getAttribute('foreach');
    $var = \substr($var, 1); //remove trailing $

    $this->sOutput = '<?php foreach($oValues->get(\'' . $var . '\') as $key => $value';
    try
    {
      $sKeyId = $this->getAttribute('key');
    }
    catch (\Exception $e)
    {
      $sKeyId = '$key';
    }
    try
    {
      $sValueId = $this->getAttribute('value');
    }
    catch (\Exception $e)
    {
      $sValueId = '$value';
    }
    $sKeyId = \crcl\base\String::factory($sKeyId)->doNotStartWith('$')->toString();
    $sValueId = \crcl\base\String::factory($sValueId)->doNotStartWith('$')->toString();
    $this->sOutput .= ') { ';
    $this->sOutput .= '$oValues->set(\'' . $sKeyId . '\', $key); ';
    $this->sOutput .= '$oValues->set(\'' . $sValueId . '\', $value); ';
    $this->sOutput .= '?>';
    $this->sOutputTriggered = '<?php } ?>';
    $this->sScope = \crcl\base\template\Instruction::SCOPE_NEXT;
  }

  /** PRIVATE *************************************************************************************/

  protected $aAllowedAttributes = array('foreach', 'key', 'value');
}